For my next small block Chevy build I was thinking of using a dual quad intake and 4 Stromberg 97 Carbs with two of those hokey ass Stromberg 97 to 4BBL manifold adapters just to do something different because you see 4x2setups for old flatheads and hemi's but you never see them for Chevys so I thought I'd do something different and give people a reason to actually look at yet another sbc but I'm wondering if it would all fit using an HEI distributor. Anybody ever try it? I have seen on ebay a couple of experimental 4x2 intakes that some racing team built back in the day but wonder how well they would work on the street.
Would you use a progressive linkage on each bank otherwise all 4 x carbs would open as if all were on direct linkage?
I would think you'd have to use a progressive linkage setup from a multi carb six cylinder manifold yes.
I don't think it would clear an HEI distributor and the linkage would be tough to get right. If you shop around you might find a Man-A-Fre 4X2 setup. They were the hot setup at one time and worked great. If you're looking for performance you will be better off with an air gap dual plane manifold and 750 Holley with vacuum secondaries.
looks to me like it'd get crowded back there. And there's nothing more self contradictory than a stromberg next to an hei.
Like this Like Jim said, gonna get pretty tight EVERYWHERE Even the factory 270 hp Chevy intake shown above with the wider center spacing won't allow the use of those adapters, as best as I can tell.
I set up a Corvette 2X4 intake on my 301 with the Speed Pro adaptors, 4 Stromberg 97s. I was able to set a Mallory Marine Y-L distributer with the crab cap, as long as the horizontal coil tower was in back, next to the firewall. Jim's right, it gats mucho 'crowded' back there! I'll use the manifold, but it'll get Carter WCFBs. Oh, and definitely the Crab! Rick, is that Grant Flamethrower available any more? I know it succeeded the Spalding, but for how long? Jackson Roto-Faze was similar...
i don't believe it is. mine came in the original box. back then it listed sbc displacements of 265 and 283 so the instructions predated the 327 and 302
Never saw four twos provide any appreciable difference in performance over a single four barrel. A complete waste of money in my estimation. If you want eight barrels go with dual quads.
Note he said: "I thought I'd do something different and give people a reason to actually look at yet another sbc". I think he's just looking to do something different and interesting. People see another dual quad 350 and just yawn. But 4 Strombergs on a SBC, now that's worth taking a second look.
You could build your own. I made this with a crossfire intake. I ran it on my Chevelle for some time it was great on the lower RPM but was lacking on the upper range because of the small intake runners. Sold it at a swap meet then found it on this ride at a car show.
Why not run 2 wcfbs and some early air cleaners? It would have the correct look, if you leave the HEI out. You could do a stock distributer with an electronic conversion if you feel the need to 'upgrade'. At least this would provide a fluid time frame. Personally I dont see a reason to use an adapter to run 2 2bbls when you can use 4bbls Wcfbs, Afbs and their Edelbrock replacements are a better interpretation of the time frame most of us strive for.
There is only one way you can successfully run 4 carbs in a row on a small block. You need a particular intake, only Stromberg 97 or 48's, and particular intake adapters to fit. Nothing else will work, especially those Vintage Speed adapters. My website has a couple of the many I have done over the years. The idea is not new as I build the first one over 20 years ago.
What you could do is get a 2x4 and make your own adapters with the carbs run sideways instead of inline. Think this only not a tunnel ram and not 2 4s.
Depending on the carb spacing on the dual quad manifold you would use you may not be able to get both the adapters onto the manifold. notice how one of the mounts for the 94/97 carbs is extended further back than the other. id be measuring careful to make sure it would all jive.
I wish they would do a 3 or 4 x 97 Chev SBC Manifold that had taller and longer runners for a straighter shot at the ports for us that don't just want to cruise..
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